Rotary brush.



w. M. B AECHITEL.

ROTARY BRUSH. APPLICATION FILED FEB. 19. 1917.

Pateflted Aug. 7, 1917.

INVENTOR ATTcRN EV WARREN M. BAEGHTEL, O1 EAGEBBTOWN, MARYLAND.

ROTARY BRUSH.

Specification of Letters Patent.

, Patented'Aiig. 7,1917.

Application filed February 19, 1917. Serial no. 149,515.

Brushes, of which the following is a spec fication.

This invention relates to brushes and more particularly to brushes of the rotatable type.

An ob ectofQhe invention is to rovide a tooth brush WhlOh'iS capable of ing 1'0- cylindrical shape, the

tated so as'to brush the teeth with anup and down motion as well as acros sthe same,

means being provided-to rotate the brush.

withthe same hand by which it is held.

, "Another ob'ect is -,to.. prev-ids a brush Whichis capa Is in addition to; the aetion H V V againstiwhich is adapted to bear a spring 22,

abovementioned-of brushing the teeth with a shirring; or angular motion,-thebrush for thiZ 1 1r ose being of spiral formation.

) the above description w ichis veapableof being reversed," so that it maybe operated with either hand to conveniently brush-the teeth in either sideof the mouth.

Other objects and advantages of the invention will appear fromthe following description, when taken in connection with the accompanying drawings, in which:

Figure 1 is an elevation of a tooth brush embodying the present invention a Fig. 2 1s a central sectional 'view of the same;

Fi 3 is a transverse sectionalvview on the line 3-3 ofFig. 2;

Fig. 4 is a sinnlar view on the line of Fi I 2 l ig. 5 is an elevation of a modified form of the invention; 1 Fi 6 is an elevation of a still further modi cation;

the subject matter of Fig. 6.

Referring to the drawings in detail the invention comprises a mi gl preferably sai casing being formed in sections and designate'd by -the numera s '10 and 11. The section 10 is formed with an elongated 0 ning 12 and adapted .to extend through t is opening is a brush 13 which is longitudinally mount- "ed within the casing.

This brush is of splral formation as shown rther object is-to; roride a brushof and is formed or mounted upon a shaft 13', one end ofwhich is 'ournaled in the end 14-. of the section 12, w ile its opposite end'is Journaled in a sleeve 15 located within the said section 12 and extending, beyond the same the said sleeve bein securedto and forminga part of the section ll of the easing. The end of the shaft within the sleeve 15. has. secured] thereon a pinion 16, the sleevebein' recessed asshown at 17 for this purpose. f desired this recess'may be provided with a plug 18.

Extend'ng transverse] of the casing and house'dthereim. is a mo "bar 19, this rack bar being adaptedto engage the. pinion: 16 for the "purpose of .rotatin 5 the same, and to this end the said rack ar. is provided with ,a finger piece 20; Thepppositeend of the rack bar "is rovided with a head'21,

the said spring being housed-within a. tu-

,- bularcasing 23 secured to and extending laterally from the sleeve 15.

. It isgthus apparent that thebi'ush may be grasped in the hand and therack bar; operated-by the thumb or finger of the said hand for the purpose of rotatingthe brush.

In order. to vprovide for the convenient useofthe' brush by either hand, so that the teeth in each side of the mouth may be cleaned, the section 10is rotatablylmounted ingly held in position by-=meansof ln 2;

formed upon t e sleeve '15, whicharea apt- ,ed to engage notches 25 formed in the section 10 the said lugs being held iatheir adjusted'engagement" by means .of a spring 26 which surrounds the sleeve 15 and bears against the flange 27 of the section 10 and a disk 28, which is removably secured to said sleeve. If desired the end of the section "11 maybe provided with a removable cap 28' as shown."

Various changes in the form and proper- -tion of the invention may be made, as for exam 1e as shown inFig.;5 a leaf spring 29 may secured to the casing as shown at 30 and engaged to the underside of the finger piece 20, in place of the spring 22 previously disk 32 is a spiral spring 35, the

described. In other respects this form of the invention is thesame as illustrated in the preceding figures. A

A further modification of the invention is illustrated in Figs. 6 and 7. In this form the shaft of the brush is extended and is of spiral formation as indicated at 31, the said extended end of the shaft having a bearing in a disk 32 within the casing. Mounted upon the spirally formed shaft 31 is a finger piece 33., which extends laterally through slots 34 provided upon diametricall opposite sides of the casing, so that a longitudinal movement of this finger piece will. rotate the Said shaft and consequently the brush. Interposed between the finger piece 33 and the this spring being to return the fingei piece "it? has been forced along the shaft against the action of the spring.

]t is believed from the foregoing :scription and accompanying drawings sat the construction, operation and advantages of purpose of,

the invention will be readily understood by persons skilled in the art and that a more extended description is therefore unnecessary.

Having described the claimed, 1s;

The combination with a brush, of a casing embodying a plurality invention, what is end of one of said sections and rovided with a reduced portion extending Within the other section, an abutment carried at the extremity of the reduced portion of said sleeve, an inwardly extending flange located at the inner end of the other section and surrounding the reduced portion. of said sleeve, a sprin interposed between said'fiange and said a utment and means carried by one of the sections and. engageable with the other seeiion for holding the said sections against accidental rotation.

l'ntestiniony whereof I allix my signature.

WARREN M. BAE-CHTEL.

of tubular sections of .eqnal diameters, a sleeve secured in the Inner 

